2004 Chrysler Crossfire P0715 Transmission Speed Sensor Code: Fix & Code Reset Options
My 2004 Chrysler Crossfire is showing a P0715 diagnostic trouble code, which indicates a fault in the turbine/input shaft speed sensor circuit. This typically points to a damaged conductor plate inside the automatic transmission. The recommended fix involves replacing the conductor plate and then resetting the transmission codes through a dealer service. I've found that after replacement, the vehicle may shift normally at first but eventually returns to limp-in mode because the original fault code remains active in memory. Standard OBD2 readers can turn off the check engine light but cannot erase stored trouble codes from the ECU's internal memory. Disconnecting the battery does not resolve this issue for the 2004 Crossfire model. Dealers typically charge around $100 to reset the codes. Is there a reasonably priced code eraser tool available that can internally clear these codes and reset the system? If so, I'd prefer to purchase one to avoid recurring visits to the dealer.
I'm not certain whether this specific P0715 code can be fully erased by a standard tool. Have you tried using a dedicated OBD2 scanner instead of a basic code reader? The difference between the two may help clarify what's actually happening. While some scanners offer diagnostic tests, they still cannot 'erase' codes in the same way as a dealer reset — erasing is an action that requires proper system communication. I suspect if this is a hard-coded fault, it might clear automatically when turning the key on. However, P0715 is typically a circuit-related issue (Turbine/Input Shaft Speed Sensor A Circuit), so possible problems include open circuits, grounding issues, or shorting to voltage. If time permits, I’ll review the wiring diagram for this component to provide more specific guidance.